Finding the Third Proportional to 2,678,412 and 5,780,228

Step by Step Solution

1. Step 1: Write the proportion equation
   2,678,412 : 5,780,228 = 5,780,228 : x
2. Step 2: Convert to fraction form
   2,678,412/5,780,228 = 5,780,228/x
3. Step 3: Cross multiply
   2,678,412x = 5,780,228 × 5,780,228
4. Step 4: Simplify right side
   2,678,412x = 33,411,035,731,984
5. Step 5: Solve for x
   x = 33,411,035,731,984/2,678,412
6. Step 6: Final answer
   x = 12,474,195.80